Car-motor.



No 845,882. PATENTED FEB: 26, 1907. B. BIDWELL,

CAR MOTOR.

APPLIUATION FILED JULY 1906.

fl i /zeayewu 1720677502? PATENTED FEB. 26, 1907.

BL BIDWBLL.

JAR MC FILED JULYB, 1

APPLICATION '2 SHEETS-SHEET 3.

4 Kahu a l g I NITED STATES PA t-shit ore-Ion.

BENSON BIDWELL, OF CHICAGO, LINOISQ- I QAR-MOTOR. i No. 845,682. Specification of letters Patent, lstented Feb. 26, 1907; i L, Ahplicaldtm filed July 5.1905. emu No. 324.777.

To whom it may con Writ. 4 combination and constructtomerrangement, Belt}, known that i, Bnxsox l-hnwnLL, a and adaptation of the ditl'ere'nt parts, which citizen of theUnited States, residing at tlhil are illustrated .in what I now consider the j cage, in the county of Cool; and State of llh l preferred form of my inventio'nin-the accom- 6o nots, have invented certain new and useful panyingrdrawtngs, in-which Improvements in Car-Motors, of which the l'tgurc 1 is a longitudinal cross-section following, taken in connection with the actaken through the center of the car axle and companymg drawings, is a descr ption. wheels. Fig. 2 is a. transverse section taken My invention has for its ohject the producon line-2 2 of-Fig.1. Big. 3 is a. like section 65 '10 tion of a motor adapted more particularly to taken online 3 3 of Fig, 1. Figt' t is a diabe applied to trolley-curs andis so arranged grammatic View illustratinga'rnodified formj that a cooling agent can hetirculated within of connecting the fieldsinjgnets and the.

and through the armature and lield-nm mets,- brushess-"f l v y thereby keeping said'a-rnmturo :tlltl magnets In carrying out my mtentlomAjcpresents 7e i 5 cool and preventing a' largeproportion of the .a car axle: having-mounted loss occasioned by said motors frequently wheels B-B, 'Wlticltilt a 'L-be 'of any'ordinary burning out. n I

h' -.'end-thereof to the 4-! type; and-GB 'are' the rnils'. "A cylindrical Herctofore in using a. gca-rless motor ith'as .casin" U, sect'tredt'ttieac I I been the customto mount the'fields on the whee s'B, 'formsnirair tight.tzhamber sur-i' '75 26 trucks of the car'with thearuuiture on the roundingthe a'i'or'es "d "axle A between the axle, andin the event of any serious jarring wheels 15 B i 1" -r of the car, caused by uneven tracks or the Armature-disksvC' reinounted upon the.

like,the fields and armature strike together me A mediittef tile-length; thereof, and;

and frequently destroy the armature-wind each-ofthc-idisks' sat hrinature; aretpro- 8s ing's and other parts or the mechanism. 'vidcdfwit'h pc't forat cfor-e-purpose'here- By 'my improved construction-with the inafterdesctibed Iountedsupomthe axle armature mounted upon the axle; and the -A are the insulating collerii D, which carry fields secured to a casing, hereinafter de thereontheoomiuutatorsdfi. scribed thc entire mechanism moves in uhi- D are the'liue wires. 3o son, thereby preventing any mechanical d arethe wiresycotmecting'thecohxmuta; damage occasioned by the jarring of the tors andthearmatui'et Y moving car. d an: thewiresponnecting the brushes and Another object of my invention is secured the field-magnets,iuntldi arcthe, return-Wires. by mounting and arranging the armature 'Securedto the-casingC ands coincident 9o and field-magnets so that l mu enabled i with the urtnatures C are the field-magnets -use from four to six poles instead or two,- s E and their windings 6. afi present used on gcarless motors. By this F are the brushes, which are held in conconstruction 1 am also enabled to run two tact with the conunutatots and are mainarmatures in parallel on the same axle, ther tained in position b y the compression-springs 9 5 0 by doublingthe amountol" power and greatly ff, surrounding the prstonj'fi. Insulated reducing the cost of construction. sit-eves G surround each one of the brushes F, In the construction o[' iny pres-eutinycnextend through the casing C,? and are pro-. tion I provide a cylindrical using secured at .viu'ed with a ntetallic'platc-or cover G; which the ends thereof .to the inside of the wlwcls is secured to thccasing'Cinaiiydesired mantoo surrounding the axle amtproyidihg an airhot. The pistonsj" j" extend through the chamber. ,This cylinder revolves with the -plates G ann flit-V0 secured thereto the rings car-wheels. Encircling said cylinder are t b",whichencirclc the-cylinder and revolve 's tationaryinsulated ringsthrougu wnichrontherewith. f tact is-made with the brushes on t'lu-commu- Secured to the plate G of the casing is a x05 5o tutors and also, iildtsired, with the held-coils l circumh-rential slotted, housing H, which. 2 by the use of spring-adjusting trolley-wheels. moves with the cylinder C.

5 Other novel features and advantages oi" v 1 represents the bottom'of the car, and semy invention wiil'be hereinafter more fully cured thereto are the hangers I, having a, pointed out in the following description. lining of insulating mate ml 1 axid provrded no '5 The invention in this instance resides with an inwardly-turn d circumferential more particularly in the simplicity of the flange i, which forms an'ebutmentfor the thereon the i V throug1 'i the pipe it into and through the pasair-tight chamber and intocontact with the 5%- condenser and used'over a ain.

the aforesaid axle, and field magnets and} tact with the ring F.

- field-magnets E and brushes F, revolves with cap i on the rod I Disposed between the sion-springs it The lower end of each rod I which extends inside of the-housing H, carries a harp J, in which is journaled a trolley- T wheel J, which wheel held in frictional coni i 'housi'ng H and the hangers .I are compres i l The axle A is provided with an inlet-opening a and an outlet-opening a, extending inwardly from each end thereof to approximately the center of the armature C for the purpose of ermitting a cooling agent iO l JC: circulated t erethrough and throughoutthe air-tight chamber formed by the casing C;

IS a tank or receptacle containing, preferablyunder pressure, acooling agent to he used in connection with the apparatus herein described and which may be arranged in any convenient place upon the car. Connected therewith is a pipe or tuheJc. In operation the cooling-gas is preferably ke t under pres sure and is forced from tiiereceptacle sa e-way a, where it enters the armature, and through the o enings 0 in the. disks of the armatu e said cooling agent passes into the fieid-nfilajznets and-other parts of the apparan an, t 'e'nce through the second armature, where it finds its exhaust through. the passage-wa a to the Outside atmosphere.

desired, said co'oli'ng agent mightbe. returned n the operation of 'the'car 1t will be observed that the casing C, carrying with itthe the wheels B B, -while the axle, armature, and the commutators remain stationary.

I claim 4 1. The combination of a stationary caraxl, wheel's mounted thereon, a casing securedto said wheels and revolving therewith, "an armature and commutator mounted upon axle and the wheel: mounted thereon, said axle having inlet and outlet passage-ways, a

cylindrical casingsecured at each end thereof to"said .wheels and revolving therewith, an

armature and commutator mounted upon said axle, field-magnets and brushes secured to said casing,.and means for supplying a cooling agent to the interior of said casing and-throughout the mechanism contained therein. v

3. The combination of a stationary caraxle and the wheels mounted thereon, said axle provided with an inlet and anoutlet passage-way through a portionof the length thereof, a c lindrical casing extending between the aforesaid wheels and secured thereto, armaturcs and commutators statioiiarily mounted upon said axle, field-magnets and brushes secured to the aforesaid casing and revolving therewith, and means for forcing a cooling agent through the aforesaid inlet passage-way and throughout the n1echanisni, substantially as described.

4. In a car-motor, the combination of a stationary axle and wheels rotatably mounted thereon, .arinatures and commutato'rs mounted on said axle, a casing surrounding said armatures and commuta'tors, brushes and field-magnets secured to and revolving with the aforesaid casing,'contact-rings electrically connected with the commutatorhrushes and the magnetic field, and trolleywheels held in contact with the aforesaid rings, substantially as described.

In testimonywhereof I have signed this specification in theprcsenc'e of two subscribing witnesses.

BENSON. BIDWELL. \Vitnesses G. W. Jou-xsrox, F. H. JOHNSTON. 

